Today on Center for Security Policy president Frank Gaffney’s radio show, Mitt Romney foreign policy adviser John Bolton defended Rep. Michele Bachmann’s (R-MN) call for the U.S. government to investigate suggestions that government employees — including a top aide to Secretary of State Hillary Clinton — are affiliated with a Muslim Brotherhood plot to infiltrate the U.S. government. Bolton has direct ties to the Romney campaign, serving as an unpaid adviser that regularly appears at campaign events stumping for the presumptive GOP presidential nominee. “John Bolton insists on good results for America and is someone I respect,” Romney said in December. “I think he’s a fine man with great capacity.”